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. Author manuscript; available in PMC: 2013 Sep 11.
Published in final edited form as: Curr Biol. 2012 Sep 11;22(17):R733–R740. doi: 10.1016/j.cub.2012.07.029

Figure 3.

Figure 3

Trade-off between life history characteristics is a function of the environment.

(A) Favorable environment promotes investment of resources in growth and reproduction while unfavorable environment promotes somatic maintenance at the expense of growth and reproduction. (B) Some aspects of unfavorable environment, such as infection or injury, lead to an inflammatory response that in turn promotes somatic maintenance and inhibits pathways controlling growth and reproduction. (C) Different environmental stresses activate different maintenance programs to deal with that stress and inhibit maintenance programs that are incompatible or linked by a functional or energetic trade-off.